package com.wzq;

import java.util.*;

public class Test {

    public static void main(String[] args) {
        int[][] a = new int[2][3];
        System.out.println(a);


    }

    private static String getCode(String str){

        HashMap<Character,Integer> m = new HashMap();
        
        for(int i=0;i<str.length();i++){
            Character c = str.charAt(i);
            if(!m.containsKey(c)){
                m.put(c,0);
            }
            m.put(c,m.get(c)+1);
        }
        StringBuilder sb = new StringBuilder();
        for(int i=0;i<26;i++){
            Character c = (char)('a'+i);

            if(m.containsKey(c)){
                sb.append(c).append(m.get(c));
            }
        }
        return sb.toString();
    }
}
